412977 (1990 UO)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7727853676 ± 1.87e-07
Semi-major axis (a)1.2570512113 AU ± 4.29e-09
Inclination (i)31.59049413° ± 2.47e-05
Long. of Asc. Node (Ω)205.57040872° ± 7.70e-06
Arg. of Perihelion (ω)333.53177339° ± 1.50e-05
Mean Anomaly (M)250.27438154° ± 3.29e-05
Mean Motion (n)0.6993310640°/day ± 3.58e-09
Perihelion dist (q)0.28562043 AU ± 2.35e-07
Aphelion dist (Q)2.22848199 AU ± 2.35e-07
Orbital Period1.40938439 yr ± 7.21e-09
Physical Parameters
H (abs. magnitude)19.57
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.434″
Uncertainty0
Orbit TypeApollo
MOID0.204796 AU
Observations Used191
Oppositions10
Arc Total1990-2025
First Observation Used1990-10-22
Last Observation Used2025-11-11
Observations (206)
Date Type RA Dec Mag Band Observatory
2021-11-11 03:49:43 C 00 11 24.81 -07 07 19.4 V G96
2021-11-21 06:52:40 C 23 43 18.154 -13 44 25.42 U F51
2021-11-21 07:08:49 C 23 43 16.438 -13 44 48.60 U F51
2021-11-21 07:25:00 C 23 43 14.746 -13 45 11.98 U F51
2025-11-11 12:25:42 C 23 06 09.060 +05 11 44.37 W O18
2025-11-11 16:20:53 C 23 06 03.399 +05 08 49.93 W O18